Edward t



@uiten taten gutem @ffiesr EDWARD T. ,COVELIL OF BROOKLYN, NEW YORK.

Letters Potent No. 63,220, dated dfareh 2d, 1867. i

nieuwe ron sometime METAL cinta TO ALL WHOM IT MAYCONCERN:

Be it known that I, EDWARD T. COVELL, of Brooklyn, in the county. of' Kings, and State ofl New York, have invented a. new and improvedSoldering Apparatus; and I do hereby declare that the following is a. full, clear, and exact description thereof, reference being had to the accompanying drawings, forming a part of this, specification, in which- Figure 1 is a perspective view of my improved soldering apparatus; and

Figure 2, a central vertical section ot' the saine, illustrating the-position ot' a can on the supporting pla-te.

Similar letters of reference indicate like parts in all ofv the lfigures. l

The nature of iny invention consists in the combination of an adjustable supporting and protecting plate, with a suitable solder-pan, for the purpose of dipping the projecting joint of a metallic vessel in the solder contained in the pan to such depth as may hercqui'red to perfect and close the same, and at the same .time to protect the bottom of the can from contact with the solder or the yetteets of its heat.

yThe solder-pan may be a simple, shallow metallic dish, A, of any desired forni and dimensions, and is to be placed upon any suitable furnace. The supporting pla-te B, which I combine with the pan A, is likewise metallic, although itmaybe of soap-stone or of wood, protected from heat hy a metallic lining or a suitable' non-'conducting composition. It :nay he a simple dat plate, for cans whose joints project below the base, or its edges c e may be upturned, for cans with joints as illustrated in iig. 2 of the drawings. The upturned edges in this case serve to enclose a composition, 9;, of plaster ot' Paris or other good non-conductor of heat, and to support also the can-I) to be'soldered. These edges c e pass into the groove, recess, or angle formed by the projecting joint d of the can, vthe plate B being ot' such dimensions as that its 'edges shall iit closely into such groove or recess, as illustrated in tig. 2. This supporting plate B is provided with stay or guide-bars E E, which, projecting therefrom, rest upon spiral springs encircling upright guide-rods F F, secured on each side of the soldering pan. These guide-rods F F, passing up through apertures piercedin the guide-bars E E, serve to retain the supporting plate B in a central position over and within the-solder-pan A, as seen in the drawings, and yet permit its free vertical movement. By overcoming the resistance of the springs, by means of pressure exerted. in any suitable manner upon the plate B, it may be forced down. in the solder to such depth as may be necessary, the extent of motion being limited by means ot'suitahle adjusting onset-screws upon .the guide-rods or bars.

With my improved apparatus, constructed substantially as d es'cribed, I am enabled to solder the joints of vessels far more quickly, with much less solder, more efficiently, and at less expense, than by the usual methods. In using it I place the soldering pan-A, filled with an alloy containing a Annuch -larger quantity of lead than is admissible in solder to be applied with a soldering iron, upon any suitable furnace. I then place the support I ing plate B in its proper position upon its springs and guides, as 'seen in iig. 2 of tlfe drawings, so that its bottom rests upon the molten solder, leaving only that portion of thevsolder exposed which flows around between the upturned edges c c 'o f the plate and the sides of the pan. The can to be soldered, having projecting joints, as illustrated in iig. 2, being now placed upon the supporting plate B, so that the joints d d shall project over the edges c c thereof, the plate is forced down by means of pressure upon the can, or by means of a lever or treadle, or other equivalent device, until the joints d are immersed in the molten solder rising around the saine, when it is then at once released, and quickly elevated to its ti'rst position by the action of the springs.l The can, thus soldered, is removed to malte place for another. As the outer edge of the hook-'shaped flange d, forming the joint oi the cans to be soldered, is not turned up quite so high as the interior bend forming the groove or channel along the joint, the joint may be dipped in the-solder far enough to cover this edge and completely ll and close the joint without danger of its flowing through 'into the can or over Athe edge of the supporting plate to the bottoni of. the can. The bottom of the can is completely protected from the heatot` the solder in the process by the interposed layer x of plaster or its equivalent.

Different sizes and forms' of supporting plates B may be used to t various sizes of cans and different shapes thereof, whether round or square, and several such sizes and-forms of supporting plates may be used with the same solder-*pan by e proper arrangement and adjustment of the guide-bars and stays to the guiderods F F of the pan.

Although I prefer to make the supporting' plate B of my soldering apparatus movable and adjustable, as describedfstill I contemplate its combination with the solder-pan Ain a-xed position, at such av height above the bottom of the pan as that, when the pan is properly-filled with solder, the edges and joints of a can' placed on the plate B, and projecting over it, shall be suliciently immersed inthe solder to become filled and closed thereby. In this form -of my appara-tus' the solder is nlwnys protected,(except in the narrow channel around the plate B) from the atmosphere. I

Having thus fully described my invention, I claim therein as new, and desir-e to secure by Letters Patent- My improved soldering apparatus, consisting" of a supporting plat-e, B, combined with a suitable soldering pan, A, constructed and arranged substantially in the manner and for the purpose herein set forth.

The foregoing specification of my improved soldering machine signed by me this tenth day of October, A. D. 1866.

EDWD. T; eoVELL.

Witnesses:

E. M. TYRVELL, M. Mt DUNN. 

